Fun farewell activities to do with my sister?!?

My dad kicked my sister out of the house and she is 18 and I am thirteen. He said she has one week to pack up her things and get out. She is going to stay at my moms house, but then she is leaving for college in a month. I'm really going to miss my sister ad I am helping her pack so it can be done quicker. I was thinking if we finish packing soon maybe we could do something A's a sister kind of thing. Do you have any ideas that will be great for me and my sister to do while she's still around? I'm really goin to miss her! :'(